title: [Element standards for quantitative X-ray microanalysis of biological specimens in the scanning transmission electron microscope].
abstract: Quantitation in biological X-ray microanalysis usually depends on the reference to one or more element standards. This paper deals with the general characteristics of such standards and gives a survey of the various methods of standard preparation reported in literature. Their advantages and disadvantages are briefly discussed. Practical experiments were carried out to prepare a potassium, calcium, and sulfur standard for X-ray microanalysis in the scanning transmission electron microscope.
mesh_terms: D002118:Calcium; D004577:Electron Probe Microanalysis / Q000379:methods / Q000592:standards*; D008854:Microscopy, Electron / Q000379:methods / Q000592:standards*; D008855:Microscopy, Electron, Scanning / Q000379:methods / Q000592:standards*; D011188:Potassium; D012015:Reference Standards; D013455:Sulfur
chemical_list: D013455:Sulfur; D011188:Potassium; D002118:Calcium
vernacular_title: Eichstandards für die quantitative Röntgenmikroanalyse biologischer Proben im Rastertransmissionselektronenmikroskop.